Restrict the user to create lines manually

Hello Friends

 

We have a requirement to restrict the user to create a line manually when the other lines of the invoice are matched to Po or receipt, is there any config in oracle to control this?

 

Example:

 

Invoice A has been created with the header value 600 pounds

Invoice has been matched to Purchase Order A for 400 pounds

User has created one line manually for 200 pounds to match it to the header total

Validated, approved and system places the invoice on Hold (Matching required hold) however this hold can be released manually

 

Your inputs are sincerely appreciated

 

Thanks

Dilip